Jacob obernesser



9 nim$lili5 heart film a county, Ohio, have invented certainImprovements in a fication.

on the dial platc -one for the purpose of operating changing thecombination.

permutation-wheels, into which a dog is intended to l in a1ine,sothatthe 'dogmay fall into them, which this point, so soon as the slots ofthe wheels were in v .a' line the dogwould fall into them, andtherebyprejthis difliculty heretoforerknown, was to have two marks on thedial--one for a guide in looking and unn locking, andby which the slotsin the wheels could bebrought in aline immediately under thcdog, the

"other at some convenient. point, by which the slots might be brought inadine at some inconvenient, inthisr personshaving charge of 'arti casiontochange the combination on which the look may happen to be placed; andwhen, occasionally,

1. are to he guidedb'y, and not uncommonly attempt to a make thisch'angeby theqmark they are iuthe habit of operating the look by. The mistakeis not discovered until the wheelsare disarranged and the combi nationlost. The, result of this is, in the majority of such cases, eitherthatthe lock has to beremoved fromthe. safeand returned to the factory,or a workmansent from" the factory to put the lock in order, either ofwhich is veryinconv'enient and expensive.

The purpose of 3 myinvention is to obviate this dif This is doneby'fmeansof mechanism for raising and 01h o B E RNEfiSEtR, o F o I-NGI NNAT I, 0 1110.

Letters Patent No. 115,230, dated May 23, 1871.

" I MPRO lI EMENT INPEVRMIUTATION-LOCKS I,-JAooB,0Ba1t1iEssnR, oiCincinnati, Hamilton Permutation-Locks, of whichthe following is aspeci-V Natureaiiil Ohiects of my Invention.

It is known that, in combination locksof the type here shown, it hasheennecessary to have two marks the lock-from, andTthe other to serve asa'guide'when' 1 Thisnecessityhasarisen from the fact that slotted fall,must be operated in looking and unlocking from" a point wherethe slots;of the wheels may be placed point is thetop of' :thefwheels andimmediately under the dog; and the mark on the dial for} this purposehas usually, forconvenience, been placed at the top IIf' it wasattempted change the-combination from ventthe separate movement of thewheels.

The onlyalternativalthen, in this class of lock, for

point where the dog could not fallfintothem.

Experience has shown that this arrangement is very? cleson which theselocks are placed. rarely have octhey find it necessary to make suchchange, get confused as to which offithe two marks *on the dial theyfic'ulty by dispensing with the second mark on tha dial.

sustaining-the dog out of the slots of the wheels while the combinationis being changed.

Description of the Accompanying Drawing.

Figure 1 is a plan of the inside of the lock, the permutation-wheelsbeing removed, and part of the disk which operates the dog-lever Bbroken away, sh owing the mechanism above referred to when in positionnot to afifect the dog,

Figure 2 is a similar view, except that the said mechanism is inposition to sustain the dog.

General Description. i As there is no part of the mechanism shown in thedrawing except that used for sustaining the dog, that is new, or uponwhich I desire to make any c1aim,it is notdeemed necessary todescribethe construction or operation of other parts of the lock, which, it isbelieved, is sufiiciently described in the specification attached toLetters Pat'ht No. 106,472, granted to Charles Diebold and JacobKienzle, dated August 16, 1870. l

In the drawing- A represents a lever, pivoted so that its upper endshall rest under the bar or lever to which. the dog is attached, so thatby operating this leverA the dog shall be raised out of the gate ornotches in the wheels and held up while the combination is changed.

For thepurpos'e of operating this lever A I provide acam or arm, A,which is fitted in a recess on the inner face of the outsidecase of thelock, immediately opposite the hole on the inner case of the lock, whichis intended as the point of entrance for the key, by,

which the permutation-wheels are made fast and loose. When the wheelsare arranged with their slots in line under the dog, which is done bythe mark on the dial by which the lock is operated, the key is insertedthrough the appropriate hole on the inner face of the lock-case, andthrough the permutation-wheels,

jthe end of it passing into the hole shown in A, it is turned half acircle to the right, sufiicient to loosen the wheels, wh'ich will, bythe operation of lever A,

cause in the permutation-wheels the key requires to be turned half acircle in order that the wheels may move freely while the change isbeing made; but it is self-evident that this lever may he so adjusted asto raise the dog by turning the cam any portion of a circle that will besufiicient to loosen the permutationwheels.

It is also evident that one lever, or three or more levers, could besubstituted in place of the one shown, without varying from theinvention described, and that their forms might be varied indefinitely.

C laims.

I claim as my invention- 1; Thelever A and cam A, arranged to operateJACOB OBERNESSER.

' Witnesses: I

S. S. MORRIS, FRANK BBEILING.

